Winding-indicator for timepieces.



No. 683,074. Patentad Sept. 24, l90l.

. C. E. A. SCHNAKE.

WINDING INDICATOR FOR TINEPIECES.

(Applictfion filed 1m. 2, 1901.)

(No Nodal.)

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UNITED STATES PATENT OFFICE.

CARL ERNEST AUGUST SCHNAKE, OF OKAWVILLE, ILLINOIS.

WINDING-INDICATOR FOR TlMEPl ECE S.

PECIFICATION forming part Of Letters Patent N0. 683,074, dated September24, 1901.

Application filed January 2, 1901. Serial No. 41,783. (No model.)

To all whom it may concern:

Be it known that I, CARL ERNEST AUGUST SOHNAKE, a citizen of the UnitedStates, and a resident of Okawville, county of Washington, and State ofIllinois, have invented certain new and useful Improvements in\Vinding-Indicators, of which the following is a specification,reference being had to the accompanying drawings, forminga part thereof,in which similar characters of reference indicate corresponding parts.

This invention relates to improvements in indicators adapted to beattached to and automatically operated by a clockwork mechanism, theobject of the invention being to supply an inexpensive and operativedevice of this character which will automaticallyindicate an unwoundcondition of the mainspring thereof, whereby the clockwork can not rundown without the device giving external notice thereof.

The invention will be hereinafter fully described, and specifically setforth in the annexed claims.

In the accompanying drawings, forming part of this specification, Figure1 is a front elevation of a clock having my improved device attachedthereto and having having its face partly broken away, and Fig. 2 is adetail sectional plan view taken on a line a: a: of Fig. 1.

In the practice of my invention I place adjacent to the mainspring, as1, a depending rod A, which has a weighted lower end a to keep it in anormally vertical position. This rod swings from and is loosely pivotedto a hanger B, which is extended from the clockframe 2.

Extended horizontally from the hub ct of the rod A is an arm A, which isprovided at its free end with a slot (1*, which engages a pin 0 of avertically-slidable plate 0, whereby swinging motion of the arm A willmove the plate 0 vertically. The plate 0 acts as an indicator, and it isvisible through the opening 3 in the face of the clock-dial. The plate 0moves within guides c on the back of the clock -dial. The lower part cof the said plate C is painted white or the same color as the clock-dialface, and the upper part 0 which is normally obscured, is painted acontrasting color, preferably red.

In the operation and use of the invention when the spring 1 is tightlywound around its post 4 the depending rod A does not contact therewith,and the white surface of the lower part of the plate 0 is in Viewthrough the opening 3 of the clock-dial but when the mainspring unwindsand expands its outer coil will contact with the rod A and swing thesame in the direction of the arrow 5, whereby the plate 0 will becarriedin a downward direction until its red-colored portion is visiblethrough the opening. 3, thus indicating that the clockwork is incondition ready for winding. When the mainspring is again wound up, thedevice will automatically assume its normal position, with the whiteportion of the plate 0 in view.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a winding-indicator, the combination with the face of a clock,having an opening therein, substantially as described; and guides uponthe back of said face; of a twocolored plate, adapted to move in saidguides, across said opening; a pin on said plate; and a slotted armengaging said pin, and adapted and arranged to move said plate in saidguides, across said opening; all substantially as and for the purposeset forth.

2. In a winding-indicator, the combination with the face of a clock,formed with an opening substantially as described; guides on the backsurface of said face; a plate adapted to move in said guides; and a pinon said plate, of an arm pivotally attached by one end to a hanger,formed with a slot at its free end, to engage said pin, and by itsmotion to slide said plate in said guides, across said opening; andmeans as specified for supporting said hanger, and for actuating saidarm, all substantially as and for the purpose set forth.

3. In a winding-indicator, the combination with the face of a clock,formed with an opening substantially as described; guides on the backsurface of said face; a plate adapted to move in said guides; acrosssaid opening and a pin on said plate; of a hanger supported by thecasing of said clock; a rod depending from, and pivotally attached tosaid hanger; a weight on the lower end of said rod, and said rodarranged and adapted to be moved by the spring of said clock, whennearly run down; an arm attached at oneend te the pivot on which thesaid 'r'od turns, moving with the said rod, formed with a slot at itsfree end, which engages said pin, and aifords' facility for moving saidplate in said guides,

across said opening; all substantially as and l for the purpose setforth.

lntestimon-y that I claim the foregoing as 'my inYen'tion Ifhave signedmy name, in pres- 1o ence of two witnesses; this 20th (lay of November,1900.-

CARL ERNEST AUGUST SCHNAKE.

Witnesses: I

G. M. -MCNEELY, E. M HOYER.

